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216121 (2006 ST56)
Classification: Main-belt Asteroid          SPK-ID: 2216121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2545084291429838 6.1797e-08  
a 2.301006576613966 7.6282e-09 au
q 1.71538100735227 1.4096e-07 au
i 7.680539631108757 4.2163e-06 deg
node 63.79651980079242 4.318e-05 deg
peri 271.2405931831598 4.444e-05 deg
M 40.25339920323714 9.278e-06 deg
tp 2459057.947356158996
(2020-Jul-27.44735616)
3.2841e-05 TDB
period 1274.897345281448
3.49
6.3397e-06
1.736e-08
d
yr
n .2823756762318191 1.4042e-09 deg/d
Q 2.886632145875661 9.5696e-09 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      7794 days (21.34 yr)  
   first obs. used      1999-09-11  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46694  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:53:31  

Additional Information
 Earth MOID = .725465 au 
 Jupiter MOID = 2.53798 au 
 T_jup = 3.536 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.83   n/a E2021B55  

216121 (2006 ST56)          Discovered 2006-Sep-20 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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